Tiff QImage not working on QT6.7.0 on raspberry

Cesar Olesk

I installed QT6.7.0 and QTCreator 13.0.0 on Raspberry Pi 4 using online installer.
I checked the addicional imageLibs on Maintenance Tool
I have installed libtiff on my raspberry.

But can't read .tif image with QImage.

PS. On windows I can read it without problems with same qt configuration

ChrisW67

@Cesar-Olesk In you original post:

I have installed libtiff on my raspberry.

I would expect that place a libtiff.so and associated symlinks somewhere.
What does locate tiff.so return?

I think the package might be called libtiff6 in Raspbian/Raspberry PI OS.

Christian Ehrlicher

@Cesar-Olesk So did you install the Qt image formats package? If so there should be a libtiff.so in <qtdir>/plugins/imageformats

Cesar Olesk

@Christian-Ehrlicher Yes you are right, there is a libqtiff.so there. with many others image libs.
But QImage image(path_file); not work, always image.isNull() == true.
If I try jpeg, it can read, so there is no problem with path or with the QImage object.
Of course, the tif images can be open with rasppi imageViewer.

ChrisW67

@Cesar-Olesk Does:

$ ldd {qtdir}/plugins/imageformats/libqtiff.so

show anything missing?

Cesar Olesk

@ChrisW67 Yes, you right. There is missing one library: libtiff.so.5. How can I get it?

ChrisW67

@Cesar-Olesk In you original post:

I have installed libtiff on my raspberry.

I would expect that place a libtiff.so and associated symlinks somewhere.
What does locate tiff.so return?

I think the package might be called libtiff6 in Raspbian/Raspberry PI OS.

Cesar Olesk

Ok, thanks